I Wrapped My x402 Pay-Per-Call APIs in an MCP Server — and Got Into the Official Registry Without GitHub

Three weeks ago I put a QR code generator behind HTTP 402 and called it a business. It made $0.00. Then I added an image toolkit. Same result. The endpoints were listed on every x402 directory I could find, the 402 challenges were textbook-compliant, and still — nothing. The problem wasn't pricing or discoverability. It was shape: the agents I...